Dewey Decimal Classification (DDC)

0 - Generalities (182): 00 - Knowledge, the book, computers, programming, Internet (51); 01 - Bibliography (18); 02 - Library and information sciences (36); 03 - General encyclopedic works (10); 05 - General serials & their indexes (11); 06 - General organizations & museology (3); 07 - News media, journalism, publishing (63); 08 - General collections (4); 09 - Manuscripts & rare books (3)

1 - Philosophy & psychology (27): 10 - Philosophy & psychology (22); 11 - Metaphysics (1); 12 - Epistemology, causation, humankind (0); 13 - Paranormal phenomena (0); 14 - Specific philosophical schools (0); 15 - Psychology (2); 16 - Logic (0); 17 - Ethics (Moral philosophy) (0); 18 - Ancient, Medieval, Oriental philosophy (0); 19 - Modern Western philosophy (2)

2 - Religion (79): 20 - Religion (13); 21 - Philosophy & theory of religion (1); 22 - Bible (3); 23 - Christianity, Christian theology (1); 24 - Christian moral & devotional theology (2); 25 - Christian orders & local church (0); 26 - Social & ecclesiastical theology (0); 27 - History of Christianity & Christian church (59); 28 - Christian denominations & sects (0); 29 - Other & comparative religions (0)

3 - Social sciences (254): 30 - Social sciences (20); 31 - General statistics (10); 32 - Political science (45); 33 - Economics (91); 34 - Law (38); 35 - Public administration & military science (10); 36 - Social problems & services, associations (2); 37 - Education (23); 38 - Commerce, communications, transport (3); 39 - Customs, etiquette, folklore (12)

4 - Language (37): 40 - Language (32); 41 - Linguistics (4); 42 - English & Old English (0); 43 - Germanic languages, German (1); 44 - Romance languages, French (0); 45 - Italian, Romanian, Rhaeto-Romanic (0); 46 - Spanish & Portuguese languages (0); 47 - Italic, Latin (0); 48 - Hellenic languages, Classical Greek (0); 49 - Other languages (0)

5 - Natural sciences & mathematics (144): 50 - Natural sciences & mathematics (10); 51 - Mathematics (23); 52 - Astronomy & allied sciences (3); 53 - Physics (19); 54 - Chemistry & allied sciences (15); 55 - Earth sciences (20); 56 - Paleontology, Paleozoology (0); 57 - Life sciences, Biology (32); 58 - Plants (13); 59 - Animals (9)

6 - Technology (Applied sciences) (457): 60 - Technology (Applied sciences) (6); 61 - Medical sciences, Medicine (185); 62 - Engineering & allied operations (79); 63 - Agriculture & related technologies (120); 64 - Home economics & family living (2); 65 - Management & auxiliary services (18); 66 - Chemical engineering (24); 67 - Manufacturing (12); 68 - Manufacture for specific uses (5); 69 - Buildings (6)

7 - The arts, Fine & decorative arts (63): 70 - The arts, Fine & decorative arts (11); 71 - Civic & landscape art (3); 72 - Architecture (8); 73 - Plastic arts, Sculpture (2); 74 - Drawing & decorative arts (1); 75 - Painting & paintings (4); 76 - Graphic arts, Printmaking and prints (2); 77 - Photography & photographs (2); 78 - Music (20); 79 - Recreational & performance arts (10)

8 - Literature (396): 80 - Literature & rhetoric (385); 81 - American literature in English (3); 82 - English & Old English literatures (3); 83 - Literatures of Gemanic languages, German literature (0); 84 - Literature of Romance languages, French literature (1); 85 - Italian, Romanian, Rhaeto-Romanic literatures (0); 86 - Spanish & Portuguese literature (0); 87 - Italic literatures, Latin (0); 88 - Hellenic literatures, Classical Greek (2); 89 - Literatures of other languages (2)

9 - Geography & history (163): 90 - Geography & history (123); 91 - Georgaphy & travel (3); 92 - Biography, geneology, insignia (24); 93 - History of ancient world (0); 94 - General history of Europe (12); 95 - General history of Asia, Far East (1); 96 - General history of Africa (0); 97 - General history of North America (0); 98 - General history of South America (0); 99 - General history of other areas (0)